Nonstop flight route between Grand Forks, North Dakota, United States and Den Helder, Netherlands:

About this route:

A direct, nonstop flight between Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States and De Kooy Airfield (DHR), Den Helder, Netherlands would travel a Great Circle distance of 4,112 miles (or 6,617 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Grand Forks Air Force Base and De Kooy Airfield, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Grand Forks Air Force Base and De Kooy Airfield. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Grand Forks Air Force Base (RDR):

• On 1 November 1964, 321st Strategic Missile Wing was organized as the Minuteman II intercontinental ballistic missile wing at GFAFB, the first in SAC.
• The 4133d SW was redesignated as the 319th Bombardment Wing on 1 February 1963 in a name-only redesigation and was assigned to SAC's Second Air Force, 810th Strategic Aerospace Division.
• The closest airport to Grand Forks Air Force Base (RDR) is Grand Forks International Airport (GFK), which is located only 10 miles (17 kilometers) E of RDR.
• The DC-11 SAGE blockhouse was later the headquarters of the SAC 321st Strategic Missile Wing.
• The furthest airport from Grand Forks Air Force Base (RDR) is Margaret River Airport (MGV), which is located 10,504 miles (16,904 kilometers) away in Margaret River, Western Australia, Australia.
• Survey teams selected sites in flat wheatlands close to the Canada-Minnesota border, north-northwest of Grand Forks.
• Due to the continuance of the Cold War between the United States and the Soviet Union, GFAFB was originally an Air Defense Command fighter-interceptor air base.
• In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".

Facts about De Kooy Airfield (DHR):

• The closest airport to De Kooy Airfield (DHR) is Amsterdam Airport Schiphol (AMS), which is located 43 miles (68 kilometers) S of DHR.
• De Kooy Airfield (DHR) currently has only 1 runway.
• Most movements on the De Kooy are made by helicopters, bringing workers to and from offshore oilrigs and naval helicopters such as the Westland Lynx or NH90 of the Royal Netherlands Navy.
• In addition to being known as "De Kooy Airfield", other names for DHR include "Vliegveld De Kooy", "Den Helder Airport" and "Maritiem Vliegkamp De Kooy".
• Because of De Kooy Airfield's relatively low elevation of 4 feet, planes can take off or land at De Kooy Airfield at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• The oil fields in the North Sea will eventually be depleted and when that happens the airport would lose most of its helicopter movements and thus alternative markets are being looked at, such as business and holiday flights.
• The furthest airport from De Kooy Airfield (DHR) is Chatham Islands (CHT), which is located 11,805 miles (18,998 kilometers) away in Waitangi, Chatham Islands, New Zealand.